How to quickly diagnose and repair, and causes of a P2091 electrical code which indicates a detected high B camshaft position actuator control circuit on bank 1.

Symptoms of P2091 OBD II Trouble Code

Rough engine idle

Decreased oil pressure

Engine may misfire

Poor engine performance

Increased fuel consumption

Change oil or service soon light is illuminated

Check engine light illuminated

Common Causes of P2091 OBD II Trouble Code

Worn timing belt or chain

Defective camshaft variable timing solenoid

Defective variable valve timing actuator

Engine oil level is too low

Blown fuse or fuse-able link (if applicable)

Misalignment of timing components

Corroded or damaged connector

Faulty or damaged wiring

Faulty ECU

Severity of P2091 OBD II Trouble Code

The severity of this code can vary tremendously from just an illuminated check engine light on a vehicle that starts and runs to an automobile that will idle rough or not start at all. The code can be serious depending on what symptoms are present. If the code is caused by a failed timing chain or belt the result can be internal engine damage.